Trolls: Holiday in Harmony is a 2021 American animated musical Christmas special that premiered on NBC on November 26, 2021. Based on DreamWorks Animation's Trolls franchise, this was the second one to be based on the franchise following Trolls Holiday, and is written and directed by Sean Charmatz and Tim Heitz (in their official directorial debuts)

A majority of the cast from the two movies reprise their respective roles, including Anna Kendrick, Justin Timberlake, Rachel Bloom, and Kenan Thompson; likewise, Lauren Mayhew and Megan Hilty reprise their respective roles as Val Thundershock and Holly Darlin' from TrollsTopia. The special features famous actress and comedian Carol Burnett as the voice of Wind Breeze.